Main pivot preload adjustment lock ring for the threaded BB shell used on 2015-2018 Demo 8 model bikes with insert for tool. Lock ring used to adjust main pivot bearing preload. Mounts to ISCG-05 chain guide holes to maintain main pivot bearing preload adjustment.
Note: Certain chain guides might interfere with the lip portion of the pivot lock tool. In the case of interference, use the flat lock tool - S150400001.
